Consequences of using simple analytical functions for the high-latitude convection electric field

摘要: Analytical functions are developed to represent the convection electric field of Heppner and Maynard (1987), which realistic representations field. The include an explicit variability with geomagnetic activity for southward interplanetary magnetic (IMF). authors have used a simple computer algorithm model ionosphere investigate consequences using Heppner-Maynard analytical high-latitude Heelis et al. (1982) model, has been widely by investigators simulations magnetosphere, and/or thermosphere, is here provide comparison. improve on function IMF. yield resonable configurations magnitude Joule heating field-aligned currents may not reasonable results depending input parameters. major differences between IMF regions near (1) dayside cusp, (2) Harang discontinuity (32) subauroral latitudes. In general, that more closely compare other investigators. For northward IMF, functional do reproduce in polarmore » cap referred as NBZ current system.« less